ASoC: fsl_micfil: use GENMASK to define register bit fields

ASoC: fsl_micfil: use GENMASK to define register bit fields

[ Upstream commit 17f2142bae4b6f2e27f19ce57d79fc42ba5ef659 ]

Use GENMASK along with FIELD_PREP and FIELD_GET to access bitfields in
registers to straighten register access and to drop a lot of defines.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shengjiu Wang <shengjiu.wang@gmail.com>
Link: https://lore.kernel.org/r/20220414162249.3934543-6-s.hauer@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 06df673d2023 ("ASoC: fsl_micfil: fix regmap_write_bits usage")
Signed-off-by: Sasha Levin <sashal@kernel.org>